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UL® and NEC® Requirements for Electric Panel Assemblies Marked with Fault Current or SCCR

By:  - March 25, 2022  


Effective April 2006 through UL® 508A, the National Electric Code® (NEC®) requires that electrical panel assemblies be marked with the available fault current or Short-Circuit Current Rating (SCCR). The SCCR rating must be marked on all industrial electrical panels and will be rated at the level of the lowest SCCR component. 

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